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"""Unit tests for update_webgl_conformance_tests."""

import unittest

from webkitpy.webgl import update_webgl_conformance_tests as webgl


def construct_script(name):
    return '<script src=\'' + name + '\'></script>\n'


def construct_style(name):
    return '<link rel=\'stylesheet\' href=\'' + name + '\'>'


class TestTranslation(unittest.TestCase):

    def assert_unchanged(self, text):
        self.assertEqual(text, webgl.translate_khronos_test(text))

    def assert_translate(self, input, output):
        self.assertEqual(output, webgl.translate_khronos_test(input))

    def test_simple_unchanged(self):
        self.assert_unchanged('')
        self.assert_unchanged('<html></html>')

    def test_header_strip(self):
        single_line_header = '<!-- single line header. -->'
        multi_line_header = """<!-- this is a multi-line
                header.  it should all be removed too.
                -->"""
        text = '<html></html>'
        self.assert_translate(single_line_header, '')
        self.assert_translate(single_line_header + text, text)
        self.assert_translate(multi_line_header + text, text)

    def dont_strip_other_headers(self):
        self.assert_unchanged("<html>\n<!-- don't remove comments on other lines. -->\n</html>")

    def test_include_rewriting(self):
        # Mappings to None are unchanged
        styles = {
            '../resources/js-test-style.css': '../../js/resources/js-test-style.css',
            'fail.css': None,
            'resources/stylesheet.css': None,
            '../resources/style.css': None,
        }
        scripts = {
            '../resources/js-test-pre.js': '../../js/resources/js-test-pre.js',
            '../resources/js-test-post.js': '../../js/resources/js-test-post.js',
            '../resources/desktop-gl-constants.js': 'resources/desktop-gl-constants.js',

            'resources/shadow-offset.js': None,
            '../resources/js-test-post-async.js': None,
        }

        input_text = ''
        output_text = ''
        for input, output in styles.items():
            input_text += construct_style(input)
            output_text += construct_style(output if output else input)
        for input, output in scripts.items():
            input_text += construct_script(input)
            output_text += construct_script(output if output else input)

        head = '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">\n<html>\n<head>\n'
        foot = '</head>\n<body>\n</body>\n</html>'
        input_text = head + input_text + foot
        output_text = head + output_text + foot
        self.assert_translate(input_text, output_text)